@Override
public ServiceResponse<NavigationElementTree> perform(ServiceRequest<NamedValues> request)
throws Exception {
String lookup = (String) request.getData().get("lookup");
boolean lazyLoadResource = (Boolean) request.getData().get("lazyLoadResource");
List<NavigationElementTree> navigationElementTrees = new ArrayList<NavigationElementTree>();
if (ConfigContainer.isAppInstalled() && StringUtils.isNotBlank(lookup)) {
String packageLookup = StringUtils.getPackageLookup(lookup);
if (packageLookup == null) {
logger.warn(MSG_WRONG_LOOKUP);
} else {
OPFContext context = OPFContext.getContext();
INavElementContainer navElementContainer = context.getNavElementContainer();
List<NavigationElement> navElementListByPackage =
navElementContainer.getNavElementListByPackage(packageLookup);
if (navElementListByPackage == null || navElementListByPackage.isEmpty()) {
logger.warn(MSG_APPROPRIATE_NAVIGATION_ELEMENTS_WERE_FOUND);
} else {
NavigationElementTree navigationElementTree = null;
NavigationElement parent = null;
for (NavigationElement vo : navElementListByPackage) {
if (vo.getLookup().equalsIgnoreCase(lookup)) {
parent = vo;
navigationElementTree = convert(parent);
break;
}
}
if (parent == null) {
logger.warn(MSG_NO_SUCH_PARENT_NAVIGATION_WAS_FOUND);
} else {
buildTree(navigationElementTree, parent, navElementListByPackage, lazyLoadResource);
navigationElementTrees = navigationElementTree.getChildren();
}
}
}
}
return new ServiceResponse<NavigationElementTree>(
navigationElementTrees, "Return tree navigation elements.", true);
}
private void buildTree(
NavigationElementTree parentNavigationElementTree,
NavigationElement parent,
List<NavigationElement> navigationElementList,
boolean lazyLoadResource) {
List<NavigationElementTree> children = parentNavigationElementTree.getChildren();
for (NavigationElement navigationElement : navigationElementList) {
if (parent.getLookup().endsWith(navigationElement.getPath())) {
OpenFlamePrincipal principal = OPFContext.getContext().getPrincipal();
if (principal.checkUserPermission(navigationElement)) {
if (!lazyLoadResource) {
initResourceContents(navigationElement);
}
NavigationElementTree navigationElementTree = convert(navigationElement);
children.add(navigationElementTree);
buildTree(
navigationElementTree, navigationElement, navigationElementList, lazyLoadResource);
}
}
}
Collections.sort(children, NavigationElementTree.SORT_POSITION);
}